Carlos earns $11 per hour at his job. Let x represent the number of hours he worked in May. Let y represent the number of hours he worked in June. Which expressions represent the amount of money, in dollars, Carlos earned in May and June? Select all correct answers.

Recall that the owner of a local health food store recently started a new ad campaign to attract more business and wants to know if average daily sales have increased. historically average daily sales were approximately $2,700. the upper bound of the 95% range of likely sample means for this one-sided test is approximately $2,843.44. if the owner took a random sample of forty-five days and found that daily average sales were now $2,984, what can she conclude at the 95% confidence level?